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Tourmaline Bio, Inc.
1W: +0.0% 1M: +0.2% 3M: +120.5% 1Y: +74.8% 3Y: +574.8%
$47.98
Last traded 2025-10-30 — delisted
NASDAQ · Healthcare · Biotechnology · $1.2B mcap · 17M float · 5.51% daily turnover · Short 56% of daily vol

🏦 Institutional Activity

Latest: Q4 2025
134
Institutions Holding
-26 vs prior
0.0%
Ownership
-83.89%
0 New
0 Increased
133 Reduced
134 Closed

👔 Insider Trades

22 records
Date Name Title Type Shares Price Value Filing
2025-10-28 Castelein Caley director U-Disposition Tender 515,997 $— $0 Filing
2025-10-28 Castelein Caley director U-Disposition Tender 431,939 $— $0 Filing
2025-10-28 Johnson Kevin Bruce officer: chief regulatory officer U-Disposition Tender 40,538 $— $0 Filing
2025-10-28 Johnson Kevin Bruce officer: chief regulatory officer D-Sale to Issuer 11,046 $— $0 Filing
2025-10-28 Jones Susan Dana officer: chief technology officer U-Disposition Tender 19,782 $— $0 Filing
2025-10-28 Jones Susan Dana officer: chief technology officer D-Sale to Issuer 3,152 $— $0 Filing
2025-10-28 KANTOFF AARON director U-Disposition Tender 88,281 $— $0 Filing
2025-10-28 Kulkarni Sandeep Chidambar officer: ceo U-Disposition Tender 724,664 $— $0 Filing
2025-10-28 Kulkarni Sandeep Chidambar officer: ceo D-Sale to Issuer 30,387 $— $0 Filing
2025-10-28 Kulkarni Sandeep Chidambar officer: ceo U-Disposition Tender 7,000 $— $0 Filing
2025-10-28 MCDADE MARK director U-Disposition Tender 518 $— $0 Filing
2025-10-28 MCDADE MARK director U-Disposition Tender 183,177 $— $0 Filing
2025-10-28 MCDADE MARK director U-Disposition Tender 110,083 $— $0 Filing
2025-10-28 MCDADE MARK director U-Disposition Tender 448,431 $— $0 Filing
2025-10-28 MIDDLEKAUFF W BRADFORD officer: cbo, gc and secretary U-Disposition Tender 60,988 $— $0 Filing
2025-10-28 MIDDLEKAUFF W BRADFORD officer: cbo, gc and secretary D-Sale to Issuer 8,213 $— $0 Filing
2025-10-28 Robinson Ryan F. officer: cfo U-Disposition Tender 14,366 $— $0 Filing
2025-10-28 Srivastava Sapna director U-Disposition Tender 518 $— $0 Filing
2025-10-28 Thiara Parvinder director U-Disposition Tender 83,782 $— $0 Filing
2025-10-24 KANTOFF AARON director G-Gift 5,000 $— $0 Filing
2025-10-15 Castelein Caley director G-Gift 522 $— $0 Filing
2025-10-15 Johnson Kevin Bruce officer: chief regulatory officer G-Gift 6,250 $— $0 Filing

🏛️ Congressional Trades

0 records
Date Politician Chamber Type Amount Filing
No congressional trades found

🏦 Top Institutional Holders

20 holders
Holder Shares Value Date Reported Filing
Vivo Capital, LLC 0 $0K -591,882 2025-12-31 Filing
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0 $0K -60,649 2025-12-31 Filing
PNC FINANCIAL SERVICES GROUP, INC. 0 $0K -20 2025-12-31 Filing
STATE BOARD OF ADMINISTRATION OF FLORIDA 0 $0K -4,400 2025-12-31 Filing
Quantbot Technologies LP 0 $0K -1,948 2025-12-31 Filing
Legal & General Group Plc 0 $0K -11,784 2025-12-31 Filing
Parkside Financial Bank & Trust 0 $0K -48 2025-12-31 Filing
DIMENSIONAL FUND ADVISORS LP 0 $0K -69,085 2025-12-31 Filing
CITADEL ADVISORS LLC 0 $0K -95,621 2025-12-31 Filing
NEW YORK STATE COMMON RETIREMENT FUND 0 $0K -6,100 2025-12-31 Filing
Farther Finance Advisors, LLC 0 $0K -2,146 2025-12-31 Filing
Creative Planning 0 $0K -13,287 2025-12-31 Filing
Mirae Asset Global Investments Co., Ltd. 0 $0K -993 2025-12-31 Filing
MILLENNIUM MANAGEMENT LLC 0 $0K -190,625 2025-12-31 Filing
Tower Research Capital LLC (TRC) 0 $0K -740 2025-12-31 Filing
ODDO BHF ASSET MANAGEMENT SAS 0 $0K -20,810 2025-12-31 Filing
AMALGAMATED BANK 0 $0K -567 2025-12-31 Filing
PRELUDE CAPITAL MANAGEMENT, LLC 0 $0K -27,282 2025-12-31 Filing
FIL Ltd 0 $0K -1,027,690 2025-12-31 Filing
TCG Crossover Management, LLC 0 $0K -1,311,783 2025-12-31 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms